21437045

素因数分解:

$5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{7753}}^1$

素因数の和:7844

約数の個数: 16

約数和(自身を含む): 29775360

約数和(自身を除く): 8338315

約数列:

[1, 5, 7, 35, 79, 395, 553, 2765, 7753, 38765, 54271, 271355, 612487, 3062435, 4287409, 21437045]

約数ペア:

[(1, 21437045), (5, 4287409), (7, 3062435), (35, 612487), (79, 271355), (395, 54271), (553, 38765), (2765, 7753)]